Percutaneous Holmium Laser Fulguration of Calyceal Diverticula

Table 1

Patient characteristics.

Characteristics	Patient 1	Patient 2
Age and sex	56 F	64 F
ASA	1	2
BMI	25	23
Side	Left	Right
Location	Upper pole, anterior	Midpole, anterior
Stone size	2 cm × 2.1 cm	1.8 cm × 1.1 cm and 1.4 cm × 1.4 cm
Hounsfield units	1034	1294
Preop serum sodium	138 mEq/L	142 mEq/L
Postop serum sodium	142 mEq/L	142 mEq/L
OR time	85 min	95 min
Fluoroscopy time	5 min	4 : 45 min
Postop Hct	0.36	0.43
PACU stay	5 hours	3 hours
PACU narcotics (mg morphine equivalents)	93 mg	50 mg
Stone composition	60% calcium phosphate	100% calcium phosphate
	30% calcium oxalate monohydrate
	10% calcium oxalate dihydrate
Metabolic stone workup	pH 5.5, hypercalciuria, hyperuricosuria, hypernatriuria, and hypocitraturia	pH 7, hypercitraturia
Longterm prophylaxis	Low salt and purine diet; allopurinol, potassium citrate, and hydrochlorothiazide	trimethoprim/sulfamethoxazole